At Valley Forge in 1777-78 Washington marched his 11,000 troops into their winter camp at Valley Forge, near Philadelphia. Conditions were dreadful, with little food and freezing temperatures. In order to keep the army together, Washington organized foraging parties to gather supplies, but also issued passes to limit the numbers who could leave the camp. (nb 2,500 still died and 1000 deserted but maybe don’t mention this!)